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Margarita [4]
3 years ago
10

The area Ar (in square meters) of a circular algae colony with radius r meters is given by =Arπr2. The radius Mt (in meters) aft

er t minutes is given by =Mt103t. Write a formula for the area Zt (in square meters) of the algae colony after t minutes. It is not necessary to simplify.
Mathematics
1 answer:
3241004551 [841]3 years ago
5 0

Answer:

Z(t)=\pi (\frac{10}{3}t)^2

Step-by-step explanation:

We have been given that the area A(r) (in square meters) of a circular algae colony with radius r meters is given by A(r)=\pi r^2. The radius M(t) (in meters) after t minutes is given by M(t)=\frac{10}{3}t. We are asked to write the formula for the area Z(t) (in square meters) of the algae colony after t minutes.  

This problem is based on composite functions, in which function M(t) represents radius of circle after t minutes.

To write the formula for the area Z(t) (in square meters) of the algae colony after t minutes, we need to substitute r=\frac{10}{3}t in area formula A(r).

Z(t)=\pi (\frac{10}{3}t)^2

Therefore, our required formula would be Z(t)=\pi (\frac{10}{3}t)^2.

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